Note 6 - Net Periodic Costs (Details) - Pension Plan [Member] - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Service cost	$ 714	$ 694
Interest cost	1,768	1,690
Expected return on plan assets	(1,594)	(1,740)
Amortization of net loss	14	7
	$ 902	$ 651